MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 43e9194904503eb5a508cf89297b8dbfc73f79600ff6bf13c5d8e717941e2652. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 8


Intelligence 8 IOCs YARA 2 File information Comments
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SHA256 hash: 43e9194904503eb5a508cf89297b8dbfc73f79600ff6bf13c5d8e717941e2652
SHA3-384 hash: e3ed9a7a08cec99a31594d205ffc90d60dc28ae2a54606472cfc0b4e8cda9483647e640eb5d31bf099bb680b80118bbd
SHA1 hash: 052473b1647481bdcbcbc50bf911c502c7ff022d
MD5 hash: 291bb2e66aa83f720406755aa0e43832
humanhash: charlie-minnesota-purple-beer
File name:bank slip_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'486'336 bytes
First seen:2021-05-24 15:45:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:fBCb5RxC/Ixg+g0NGmc+Nvj+a7x/VQTdBsYXP0nIUZ7RZh:fBCb53C/EgD0NpBETvsYXP2Im7R
Threatray 37 similar samples on MalwareBazaar
TLSH 4165DF2C516EF122C2A9C3B94AD8443FE590D7377132BE28ECD7579C1B19E41B98227E
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bank slip_pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-05-25 01:43:19 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/bfef8bd1-deb2-4c4e-b2cd-db6f796d10a8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/790967
Signature
.NET source code contains very large strings
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 423363 Sample: bank slip_pdf.exe Startdate: 25/05/2021 Architecture: WINDOWS Score: 100 65 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->65 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 12 other signatures 2->71 11 bank slip_pdf.exe 7 2->11         started        process3 file4 45 C:\Users\user\AppData\...\ONhAlhIFNpS.exe, PE32 11->45 dropped 47 C:\Users\...\ONhAlhIFNpS.exe:Zone.Identifier, ASCII 11->47 dropped 49 C:\Users\user\AppData\Local\...\tmp1528.tmp, XML 11->49 dropped 51 C:\Users\user\...\bank slip_pdf.exe.log, ASCII 11->51 dropped 87 Writes to foreign memory regions 11->87 89 Allocates memory in foreign processes 11->89 91 Injects a PE file into a foreign processes 11->91 15 RegSvcs.exe 6 11->15         started        19 RegSvcs.exe 11->19         started        21 schtasks.exe 1 11->21         started        signatures5 process6 file7 53 C:\Users\user\AppData\Roaming\suSwVklf.exe, PE32 15->53 dropped 61 Injects a PE file into a foreign processes 15->61 23 RegSvcs.exe 15->23         started        26 schtasks.exe 1 15->26         started        63 Tries to detect virtualization through RDTSC time measurements 19->63 28 conhost.exe 21->28         started        signatures8 process9 signatures10 79 Modifies the context of a thread in another process (thread injection) 23->79 81 Maps a DLL or memory area into another process 23->81 83 Sample uses process hollowing technique 23->83 85 Queues an APC in another process (thread injection) 23->85 30 explorer.exe 23->30 injected 34 conhost.exe 26->34         started        process11 dnsIp12 55 martinbrosenterprise.com 166.62.10.181, 49725, 80 AS-26496-GO-DADDY-COM-LLCUS United States 30->55 57 www.yogatrac.com 30->57 59 4 other IPs or domains 30->59 93 System process connects to network (likely due to code injection or exploit) 30->93 36 cmd.exe 30->36         started        39 autoconv.exe 30->39         started        signatures13 process14 signatures15 73 Modifies the context of a thread in another process (thread injection) 36->73 75 Maps a DLL or memory area into another process 36->75 77 Tries to detect virtualization through RDTSC time measurements 36->77 41 cmd.exe 1 36->41         started        process16 process17 43 conhost.exe 41->43         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/43e9194904503eb5a508cf89297b8dbfc73f79600ff6bf13c5d8e717941e2652/
Threat name:
ByteCode-MSIL.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-05-24 15:45:14 UTC
AV detection:
6 of 47 (12.77%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ipurssieka7lljiiz6ess64nx7dt66lab73l6e6f3dtrpfa6ezja._file
Verdict:
unknown
Similar samples:
0862accb403349f37941cc6f8c3cf104bed79dc2b1b1874e397a9b624292ace4
Formbook
13af5e008abf4380ac84c6edc70d188bdb18ddb613c7ffaaec39085cf0a43e45
Formbook
3660e5c8b93737203d8fd83e8bf059e2dedc8ca43e7cbf91e15f75df7ee4a1d2
Formbook
66b82396793d2236adbb51f5ac863e2fa7c3792b9aa234148403b14c4c5bdd23
Formbook
6ce06ad436b9a3d99c6cbbd1f5b746d2a6ddc9fd2957f58e00b9438e9b24d99e
Formbook
7e595e94b08c3bbd600f3fe1c310a6eb20b85e0784d4f519e713bb6a5e53446c
Formbook
b7a12a5a7c949b8796badd292866ccc2e2eebe30af1a9d8d1c421c7512a4a37d
Formbook
caf75f7fb5dd554c31a6b2ef46e3899b3803dcbf65a52919eb4799697692a4a0
Formbook
d80ef3539826be2df8fc985eada5f191b3ae9eb9eb53dfbb054651d25daafe23
Formbook
f4fc2dc5b2fdb55378fc552afdd02c5ba99148de2ae9f1633de95dca70a40d02
Formbook
+ 27 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210524-3jvpf6bxha/
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/43e9194904503eb5a508cf89297b8dbfc73f79600ff6bf13c5d8e717941e2652

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments